Sacroiliitis

Has anyone been dx with Sacroiliitis? I've been reading after being dx recently with it and trying to find info but there's not alot out there it seems.

I have OA, DDD and bone spurs also, does that point to my spine fusing together? This is what I'm gathering is happening from my Xrays, CT's & the doctor talking to me.  If bone spurs are on the front and back of your spine top to bottom is that a definitive sign your spine may fuse?  

I've been reading it may be associated with AS; which may account for my breathing difficulties, heart problems etc...I'm going to a Rheumy at a large college here next week.  There is no cure correct? my dr said he would just keep putting "water on the fire" so to speak to help my symptoms.

Now the trick is to try and find what caused mine.  I had Group Beta Streptococcus in Nov 1997 and a car accident where I messed my pelvis up pretty badly in March 1999 but went through therapy and got better until August 2009 after I had heart surgery.  

What I'm worried about is the Group B infection turned septic and I almost died but have had a multitude of health problems and frequent infections since then; esp UTI's treated with Levaquin...maybe infection has spread to the bone because last year I started having excruciating pain inside my bones which started in the hips & thighs but has spread.

Have had several cbc's and urinalysis which show infection and protein in my blood & urine...all else normal except in my urinalysis.